what is this error "error updating text"
76 ビュー (過去 30 日間)
古いコメントを表示
i keep gettin an error i have not seen before
"Warning error updating text string scalar or character bector must have valid interpreter syntax"
below is the code
x=(1:15); % x
y=[0.35 0.4 0.52 0.58 0.46 0.74 0.68 0.82 1.03 1.17 1.81 2.01 2.63 3.29 4]; % y
P=polyfit(x,log(y),1);
A=exp(P(2))
B=(P(1))
y_fit=a*exp(b*x);
figure
plot(x,y,'r*')
xlabel('x')
ylabel('y and y__fit')
grid on
hold on
plot(x,y_fit,'-b')
legend('Original data (y)','Fitted data (y__fit)')
1 件のコメント
Fangjun Jiang
2021 年 7 月 28 日
Add "clear all" as the first line of your code, run it again, debug it and paste the error that you couldn't resolve.
採用された回答
Cris LaPierre
2021 年 7 月 28 日
By default, labels and legends (among other things) apply a tex interpreter to their text. The '_' is used to indicate a subscript.
In your text, you use a double underscore: 'y__fit'. The error is telling you that MATLAB does not know how to interpret this. If you do not want it to do anything, change your code to set the corresponding interpreters to 'none'.
x=(1:15); % x
y=[0.35 0.4 0.52 0.58 0.46 0.74 0.68 0.82 1.03 1.17 1.81 2.01 2.63 3.29 4]; % y
P=polyfit(x,log(y),1);
a=exp(P(2))
b=(P(1))
y_fit=a*exp(b*x);
figure
plot(x,y,'r*')
xlabel('x')
ylabel('y and y__fit','Interpreter',"none")
grid on
hold on
plot(x,y_fit,'-b')
legend('Original data (y)','Fitted data (y__fit)','Interpreter',"none")
その他の回答 (0 件)
参考
カテゴリ
Help Center および File Exchange で Legend についてさらに検索
Community Treasure Hunt
Find the treasures in MATLAB Central and discover how the community can help you!
Start Hunting!